package com.zy.mobile.message.push.netty.chapter8;

import com.zy.mobile.message.push.netty.chapter8.protobuf.SubscribeReqProto;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.protobuf.ProtobufDecoder;
import io.netty.handler.codec.protobuf.ProtobufEncoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;

public class SubReqServer {
	
	public void bind(int port) throws Exception{
		EventLoopGroup bossGroup = new NioEventLoopGroup();
		EventLoopGroup workerGroup = new NioEventLoopGroup();
		try {
			ServerBootstrap b = new ServerBootstrap();
			b.group(bossGroup,workerGroup)
				.channel(NioServerSocketChannel.class)
				.option(ChannelOption.SO_BACKLOG,100)
				.handler(new LoggingHandler(LogLevel.INFO))
				.childHandler(new ChannelInitializer<SocketChannel>() {
					@Override
					protected void initChannel(SocketChannel ch)
							throws Exception {
						// TODO Auto-generated method stub
						ch.pipeline().addLast(new ProtobufVarint32FrameDecoder());
						ch.pipeline().addLast(new ProtobufDecoder(SubscribeReqProto.SubscribeReq.getDefaultInstance()));
						ch.pipeline().addLast(new ProtobufVarint32LengthFieldPrepender());
						ch.pipeline().addLast(new ProtobufEncoder());
						ch.pipeline().addLast(new SubReqServerHandler());
					}
				});
			
			//绑定端口 同步等待成功
			ChannelFuture f = b.bind(port).sync();
			//等待服务器监听端口关闭
			f.channel().closeFuture().sync();
			
		} catch (Exception e) {
			// TODO: handle exception
		} finally{
			bossGroup.shutdownGracefully();
			workerGroup.shutdownGracefully();
		}
	}
	
	public static void main(String[] args) throws Exception {
		int port = 8080;
		if(args != null & args.length>0){
			try {
				port = Integer.valueOf(args[0]);
			} catch (Exception e) {
				// TODO: handle exception
				
			}
		}
		new SubReqServer().bind(port);
	}
	
}

